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Cancer of an unknown primary

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https://www.readbyqxmd.com/read/28343447/the-undifferentiated-carcinoma-that-became-a-melanoma-re-biopsy-of-a-cancer-of-an-unknown-primary-site-a-case-report
#1
Oluf Dimitri Røe, Sissel Gyrid Freim Wahl
BACKGROUND: Cancer of unknown primary site is still a demanding condition as it is per definition metastatic, with heterogeneous biological behavior, and it is often resistant to therapy. Cancer of unknown primary site accounts for approximately 1 to 5 % of all cancers, but is currently among the top six causes of cancer deaths in Western countries. To correctly identify the biological origin of the tumor, a large spectrum of differential diagnoses must be considered and scrutinized. At progression, re-biopsy might be necessary to reveal the true origin of the tumor or actionable targets...
March 27, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28342482/treatment-outcomes-in-veterans-with-hpv-positive-head-and-neck-cancer
#2
Aaron J Feinstein, Sophie G Shay, Elena Chang, Michael S Lewis, Marilene B Wang
OBJECTIVES: Head and neck squamous cell carcinoma (HNSCC) caused by the human papilloma virus (HPV) has an improved prognosis relative to HPV-negative tumors. Patients with HPV-positive disease may benefit from different treatment modalities in order to optimize survival and quality of life. We sought to investigate HPV-positive HNSCC within the military veteran population, and analyze the role of treatment modality in outcomes of patients with HPV-positive and HPV-negative tumors. METHODS: Patients diagnosed with HNSCC between January 1, 2010 and December 31, 2014 at one regional veterans health center were retrospectively examined...
March 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28336434/vav1-expression-is-increased-in-esophageal-squamous-cell-carcinoma-and-indicates-poor-prognosis
#3
Xiaolei Zhu, Huan Jin, Ziwei Xia, Xianxian Wu, Mingjian Yang, Hongdian Zhang, Xiaobin Shang, Runfen Cheng, Zhongli Zhan, Zhentao Yu
Recently, Vav1 has been suggested to play an essential role in the progression of human cancers. However, the correlation between Vav1 expression and prognosis of esophageal squamous cell carcinoma (ESCC) is still unknown. The aim of this study was to investigate Vav1 expression and its prognostic value in ESCC. The expression of Vav1 was detected by real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) and Western blotting in ESCC tissues and matched nontumorous tissues. Immunohistochemistry (IHC) was carried out to detect Vav1 expression in paraffin samples from 112 primary ESCC patients...
March 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28334546/-parathyroid-cancer
#4
Ivana Ságová, Matej Stančík, Peter Kentoš, Dušan Pavai, Daniela Kantárová, Anton Vaňuga, Peter Vaňuga
Parathyroid cancer is a rare endocrine malignancy, representing less than 1 % of all cases of primary hyperparathyroidism. The exact etiology of the disease remains unknown. Known risk factors include neck irradiation, end stage renal failure, genetic factors, particularly the the HPRT2/CDCT73 gene mutation. The clinical picture is often indolent, yet progressive with a trend of local invasion and metastasis formation in advanced disease. The clinical picture includes symptoms of severe and resistant hypercalcemia, requiring intensive therapy often with the need of dialysis...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28324044/inverse-regulation-of-dht-synthesis-enzymes-5%C3%AE-reductase-types-1-and-2-by-the-androgen-receptor-in-prostate-cancer
#5
Étienne Audet-Walsh, Tracey Yee, Ingrid S Tam, Vincent Giguère
5α-reductase types 1 and 2, encoded by SRD5A1 and SRD5A2, are the two enzymes that can catalyze the conversion of testosterone to dihydrotestosterone, the most potent androgen receptor (AR) agonist in prostate cells. 5α-reductase type 2 is the predominant isoform expressed in the normal prostate. However, its expression decreases during prostate cancer (PCa) progression, while SRD5A1 increases and the mechanism underlying this transcriptional regulatory switch is still unknown. Interrogation of SRD5A mRNA expression in three publicly available datasets confirmed that SRD5A1 is increased in primary and metastatic PCa compared to non-tumoral prostate tissues, while SRD5A2 is decreased...
January 23, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323674/emergency-presentation-of-esophagogastric-cancer-predictors-and-long-term-prognosis
#6
Sheraz R Markar, Hugh Mackenzie, Sara Jemal, Omar Faiz, David Cunningham, George B Hanna
OBJECTIVE: To identify patient factors that are associated with emergency presentation of esophageal and gastric cancer, and further to evaluate long-term prognosis in this cohort. BACKGROUND: The incidence of emergency presentation is variable, with the prognosis of patients stabilized and discharged to return for elective surgery unknown. METHODS: The primary admission of patients with esophageal or gastric cancer within the Hospital Episode Statistics database (1997-2012) was used to classify as emergency or elective diagnosis...
March 20, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28314959/cancer-of-unknown-primary-cup-of-the-head-and-neck-retrospective-analysis-of-81-patients
#7
Basel Al Kadah, Giorgos Papaspyrou, Maximilian Linxweiler, Bernhard Schick, Christian Rübe, Benjamin Simeon Büchler, Marcus Niewald
The treatment of patients with cervical lymph node metastases without detectable primary tumor remains an important challenge, until today, no standard therapy is available. The present study investigated the multimodal treatment of patients with head and neck CUP syndrome (HNCUP) and their follow-up retrospectively. 81 patients with cervical lymph node metastases without a primary tumor were treated at the Departments of Otorhinolaryngology as well as Radiotherapy and Radiation Oncology at the University of Saarland in Homburg, Germany in the period between 1991 and 2013...
March 17, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28314930/non-reproducible-sequence-artifacts-in-ffpe-tissue-an-experience-report
#8
Richard Ofner, Cathrin Ritter, Selma Ugurel, Lorenzo Cerroni, Mathias Stiller, Thomas Bogenrieder, Flavio Solca, David Schrama, Jürgen C Becker
BACKGROUND: Recent advances in sequencing technologies supported the development of molecularly targeted therapy in cancer patients. Thus, genomic analyses are becoming a routine part in clinical practice and accurate detection of actionable mutations is essential to assist diagnosis and therapy choice. However, this is often challenging due to major problems associated with DNA from formalin-fixed paraffin-embedded tissue which is usually the primary source for genetic testing. OBJECTIVES: Here we want to share our experience regarding major problems associated with FFPE DNA used for PCR-based sequencing as illustrated by the mutational analysis of ERBB4 in melanoma...
March 17, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28304120/comparative-effectiveness-of-chemotherapy-versus-resection-of-the-primary-tumor-as-the-initial-treatment-in-older-patients-with-stage-iv-colorectal-cancer
#9
Hemalkumar B Mehta, Gabriela M Vargas, Deepak Adhikari, Francesca Dimou, Taylor S Riall
AIM: The objective was to determine trends in the use of chemotherapy as the initial treatment and evaluate the comparative effectiveness of initial chemotherapy versus resection of the primary tumour on survival (intention-to-treat analysis) in stage IV colorectal cancer (CRC). METHODS: This cohort study used Surveillance Epidemiology, and End Results (SEER)-Medicare (2000-2011) data, including patients ≥66 years presenting with stage IV CRC. Cox proportional hazards models and instrumental variable analysis were used to determine the association of chemotherapy versus resection of the primary tumour as the initial treatment with 2-year survival...
March 17, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/28302086/extracellular-hsp90-and-tgf%C3%AE-regulate-adhesion-migration-and-anchorage-independent-growth-in-a-paired-colon-cancer-cell-line-model
#10
Jo-Anne de la Mare, Tamarin Jurgens, Adrienne L Edkins
BACKGROUND: Tumour metastasis remains the major cause of death in cancer patients and, to date, the mechanism and signalling pathways governing this process are not completely understood. The TGF-β pathway is the most commonly mutated pathway in cancer, however its role in cancer progression is controversial as it can function as both a promoter and a suppressor of metastasis. Although previous studies have suggested a role for the molecular chaperone Hsp90 in regulating the TGF-β pathway, the level at which this occurs as well as the consequences in terms of colon cancer metastasis are unknown...
March 16, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28298195/role-of-systemic-inflammation-scores-for-prediction-of-clinical-outcomes-in-patients-treated-with-atazanavir-not-boosted-by-ritonavir-in-the-italian-master-cohort
#11
Maria Concetta Postorino, Mattia Prosperi, Emanuele Focà, Eugenia Quiros-Roldan, Elisa Di Filippo, Franco Maggiolo, Alberto Borghetti, Nicoletta Ladisa, Massimo Di Pietro, Andrea Gori, Laura Sighinolfi, Angelo Pan, Nicola Mazzini, Carlo Torti
BACKGROUND: Atazanavir (ATV) not boosted by ritonavir (uATV) has been frequently used in the past for switching combination antiretroviral therapy (cART). However, the clinical outcomes and predictors of such strategy are unknown. METHODS: An observational study was carried out on the Italian MASTER, selecting HIV infected patients on cART switching to an uATV-containing regimen. Baseline was set as the last visit before uATV initiation. In the primary analysis, a composite clinical end-point was defined as the first occurring of any condition among: liver, cardiovascular, kidney, diabetes, non AIDS related cancer or death events...
March 15, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28291866/long-term-safety-and-efficacy-of-achieving-very-low-levels-of-low-density-lipoprotein-cholesterol-a-prespecified-analysis-of-the-improve-it-trial
#12
Robert P Giugliano, Stephen D Wiviott, Michael A Blazing, Gaetano M De Ferrari, Jeong-Gun Park, Sabina A Murphy, Jennifer A White, Andrew M Tershakovec, Christopher P Cannon, Eugene Braunwald
Importance: In the Improved Reduction of Outcomes: Vytorin Efficacy International Trial, intensive low-density lipoprotein cholesterol (LDL-C)-reducing therapy with ezetimibe/simvastatin compared with simvastatin alone was associated with a significant reduction in cardiovascular events in 18 144 patients after acute coronary syndrome. The safety of very low LDL-C levels over the long-term is unknown. Objective: To assess the safety and clinical efficacy of achieving a very low (<30 mg/dL) level of LDL-C at 1 month using data from the Improved Reduction of Outcomes: Vytorin Efficacy International Trial...
March 14, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28279170/patients-with-pathological-stage-n2-rectal-cancer-treated-with-early-adjuvant-chemotherapy-have-a-lower-treatment-failure-rate
#13
Yan-Ru Feng, Jing Jin, Hua Ren, Xin Wang, Shu-Lian Wang, Wei-Hu Wang, Yong-Wen Song, Yue-Ping Liu, Yuan Tang, Ning Li, Xin-Fan Liu, Hui Fang, Zi-Hao Yu, Ye-Xiong Li
BACKGROUND: In this era of oxaliplatin-based adjuvant therapy, the optimal sequence in which chemoradiotherapy should be administered for pathological stage N2 rectal cancer is unknown. The aim of this study was to investigate this sequence. METHODS: In the primary adjuvant concurrent chemoradiotherapy (A-CRT) group (n = 71), postoperative concurrent chemoradiotherapy was administered before adjuvant chemotherapy. In the primary adjuvant chemotherapy (A-CT) group (n = 43), postoperative concurrent chemoradiotherapy was administered during or after adjuvant chemotherapy...
March 9, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28277612/wdr62-overexpression-is-associated-with-a-poor-prognosis-in-patients-with-lung-adenocarcinoma
#14
Kazuya Shinmura, Hisami Kato, Yuichi Kawanishi, Hisaki Igarashi, Yusuke Inoue, Katsuhiro Yoshimura, Satoki Nakamura, Hidehiko Fujita, Kazuhito Funai, Masayuki Tanahashi, Hiroshi Niwa, Hiroshi Ogawa, Haruhiko Sugimura
Human WDR62, which is localized in the cytoplasm including the centrosome, is known to be responsible for primary microcephaly; however, the role of WDR62 abnormality in cancers remains largely unknown. In this study, we aimed to reveal the pathological role of WDR62 abnormality in lung adenocarcinoma (LAC). We first examined the WDR62 mRNA expression level of LAC (n = 64) using a QRT-PCR analysis and found that WDR62 mRNA transcripts were significantly overexpressed in LAC (P = 0.0432, Wilcoxon matched pairs test)...
March 9, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28274395/attitudes-of-radiation-oncologists-toward-palliative-and-supportive-care-in-the-united-states-report-on-national-membership-survey-by-the-american-society-for-radiation-oncology-astro
#15
Randy L Wei, Malcolm D Mattes, James Yu, Adrienne Thrasher, Hui-Kuo Shu, Harald Paganetti, Jennifer De Los Santos, Bridget Koontz, Christopher Abraham, Tracy Balboni
PURPOSE: Radiation oncologists are frequently involved in providing palliative and supportive care (PSC) for patients with advanced cancers through delivery of palliative radiation. Whether they are confident in their ability to assess and initiate treatments for pain, nonpain, and psychosocial distress is unknown. The American Society for Radiation Oncology surveyed its practicing members in the United States on self-assessment of their primary PSC skills and access to continuing medical education on PSC...
March 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28269758/microrna31-ndrg3-regulation-axes-are-essential-for-hepatocellular-carcinoma-survival-and-drug-resistance
#16
Zhonghai Du, Shuxian Niu, Xiaoyu Xu, Qinghui Xu
BACKGROUNDS: Hepatocellular carcinoma (HCC) is an epithelial cancer that originates from hepatocytes and it is the most common primary malignant tumor of the liver. Till now the prognosis of HCC patients is generally poor. The molecular mechanism giving rise to HCC development and recurrence is still largely unknown. MicroRNA-31 (miR-31) is among the most commonly altered microRNAs in human cancers, and alternations of miR-31 expression were reported to play pivotal roles in tumorigenesis and tumor progression...
February 27, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28267211/retrospective-review-of-serotonergic-medication-tolerability-in-patients-with-neuroendocrine-tumors-with-biochemically-proven-carcinoid-syndrome
#17
Diana D Shi, David P Yuppa, Trevor Dutton, Lauren K Brais, Sarah L Minden, Ilana M Braun, Matthew H Kulke, Jennifer A Chan, Fremonta L Meyer
BACKGROUND: Patients with carcinoid tumors frequently could benefit from the pharmacologic treatment of depression and anxiety. However, many prescribers avoid serotonergic medications due to the theoretical risk of exacerbating carcinoid syndrome. METHODS: The authors conducted a retrospective chart review of patients with carcinoid tumors and elevated serotonin levels (as measured by 24-hour urine 5-hydroxyindoleacetic acid [5-HIAA]) at Dana-Farber/Brigham and Women's Cancer Center who initiated treatment with serotonergic antidepressants after a carcinoid diagnosis from 2003 to 2016...
March 7, 2017: Cancer
https://www.readbyqxmd.com/read/28264810/promoter-methylation-modulates-indoleamine-2-3-dioxygenase-1-induction-by-activated-t-cells-in-human-breast-cancers
#18
Satish K Noonepalle, Franklin Gu, Eun-Joon Lee, Jeong-Hyeon Choi, Qimei Han, Jaejik Kim, Maria Ouzounova, Austin Y Shull, Lirong Pei, Pei-Yin Hsu, Ravindra Kohle, Fang Shi, Jiseok Choi, Katie Chiou, Tim H M Huang, Hasan Korkaya, Libin Deng, Hong-Bo Xin, Shuang Huang, Muthusamy Thangaraju, Arun Sreekumar, Stefan Ambs, Shou-Ching Tang, David H Munn, Huidong Shi
Triple-negative breast cancer (TNBC) cells are modulated in reaction to tumor-infiltrating lymphocytes. However, their specific responses to this immune pressure are unknown. In order to address this question, we first used mRNA sequencing to compare the immunophenotype of the TNBC cell line MDA-MB-231 and the luminal breast cancer cell line MCF7 after both were cocultured with activated human T cells. Despite similarities in the cytokine-induced immune signatures of the two cell lines, MDA-MD-231 cells were able to transcribe more IDO1 than MCF7 cells...
March 6, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28262692/mir-139-5p-as-a-novel-serum-biomarker-for-recurrence-and-metastasis-in-colorectal-cancer
#19
Jinsei Miyoshi, Shusuke Toden, Kazuhiro Yoshida, Yuji Toiyama, Steven R Alberts, Masato Kusunoki, Frank A Sinicrope, Ajay Goel
Approximately 30-50% of colorectal cancer (CRC) patients who undergo curative resection subsequently experience tumor recurrence or metastasis. Although microRNAs (miRNAs) are a class of small noncoding RNAs frequently deregulated in various human malignancies, it remains unknown if these can help predict recurrence and metastasis in CRC patients. MiRNAs were initially screened using miRNA-microarray and miRNA-seq datasets with or without recurrence. Candidate miRNAs were then tested in two independent cohorts of 111 stage II/III and 139 stage I-III CRC patients, as well as serum samples and matched primary and metastatic liver tissues...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28260090/actin-like-protein-6a-is-a-novel-prognostic-indicator-promoting-invasion-and-metastasis-in-osteosarcoma
#20
Wei Sun, Wanchun Wang, Jian Lei, Hui Li, Yi Wu
Osteosarcoma harbors highly metastatic properties, accounting for postoperative recurrence and metastasis. Actin-like protein 6A (ACTL6A) regulates cell proliferation, migration and differentiation. However, the biologic role of ACTL6A in osteosarcoma remains unknown. In this study, the results showed that, by analysis of frozen fresh primary tumor tissues, matched non-cancerous bone tissues (NCBTs) and biopsy lung metastatic nodule tissues from 30 osteosarcoma patients after radical surgical resection, ACTL6A was overexpressed in osteosarcoma tissues compared with matched NCBTs, and its expression level was associated with osteosarcoma metastasis...
February 23, 2017: Oncology Reports
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